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LT1083CP Datasheet(PDF) 6 Page - Linear Technology

Part # LT1083CP
Description  7.5A, 5A, 3A Low Dropout Positive Adjustable Regulators
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1083CP Datasheet(HTML) 6 Page - Linear Technology

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6
LT1083/LT1084/LT1085
108345fe
TYPICAL PERFORMANCE CHARACTERISTICS
TIME (
µs)
0
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
3
2
1
0
50
1083/4/5 ADJ G24
100
CADJ = 0
CADJ = 1µF
CIN = 1µF
COUT = 10µF TANTALUM
VOUT = 10V
VIN = 13V
PRELOAD=100mA
LT1085
LT1085
LT1085
Ripple Rejection
Ripple Rejection vs Current
Maximum Power Dissipation*
FREQUENCY (Hz)
100
90
80
70
60
50
40
30
20
10
0
10
1k
10k
100k
1083/4/5 ADJ G19
100
VRIPPLE
≤ 0.5VP-P
VRIPPLE ≤ 3VP-P
(VIN – VOUT) ≥ 3V
(VIN – VOUT) ≥ VDROPOUT
CADJ = 200µF AT FREQUENCIES < 60Hz
CADJ = 25µF AT FREQUENCIES > 60Hz
IOUT = 3A
OUTPUT CURRENT (A)
0
100
90
80
70
60
50
40
30
20
10
0
1.0
1.5
2.5
3.0
1083/4/5 ADJ G20
0.5
2.0
VOUT = 5V
CADJ = 25µF
COUT = 25µF
fR = 120Hz
VRIPPLE ≤ 3VP-P
fR = 20kHz
VRIPPLE ≤ 0.5VP-P
CASE TEMPERATURE (°C)
50
50
40
30
20
10
0
LT1083/4/5 ADJ G21
60 70 80 90 100 110 120 130 140 150
LT1085MK
LT1085CT
LT1085CK
* AS LIMITED BY MAXIMUM JUNCTION TEMPERATURE
LT1083
LT1084
LT1085
Load Transient Response
Load Transient Response
Load Transient Response
TIME (
µs)
0
0.6
0.4
0.2
0
–0.2
–0.4
8
6
4
2
0
50
1083/4/5 ADJ G22
100
CADJ = 0
CADJ = 1µF
CIN = 1µF
COUT = 10µF TANTALUM
VOUT=10V
VIN=13V
PRELOAD=100mA
TIME (
µs)
0
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
6
4
2
0
50
1083/4/5 ADJ G23
100
CADJ = 0
CADJ = 1µF
CIN = 1µF
COUT = 10µF TANTALUM
VOUT = 10V
VIN = 13V
PRELOAD=100mA
LT1083
LT1084
LT1085
Line Transient Response
Line Transient Response
Line Transient Response
TIME (
µs)
0
60
40
20
0
–20
–40
–60
14
13
12
100
1083/4/5 ADJ G26
200
CADJ = 0
CADJ = 1µF
VOUT = 10V
IIN = 0.2A
CIN = 1µF TANTALUM
COUT = 10µF TANTALUM
TIME (
µs)
0
60
40
20
0
–20
–40
–60
14
13
12
100
1083/4/5 ADJ G27
200
CADJ = 0
CADJ = 1µF
VOUT = 10V
IIN = 0.2A
CIN = 1µF TANTALUM
COUT = 10µF TANTALUM
TIME (
µs)
0
150
100
50
0
–50
–100
–150
14
13
12
100
1083/4/5 ADJ G25
200
CADJ = 0
CADJ = 1µF
VOUT = 10V
IIN = 0.2A
CIN = 1µF TANTALUM
COUT = 10µF TANTALUM


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